http://qiserver.ugr.es/cod/1525974.cif
http://qiserver.ugr.es/cod/1525977.cif
http://qiserver.ugr.es/cod/1525979.cif
http://qiserver.ugr.es/cod/1525981.cif
http://qiserver.ugr.es/cod/1526289.cif
http://qiserver.ugr.es/cod/1526291.cif